METHOD AND SYSTEM FOR EXTRUDING TUBULAR FOAMED POLYMER SHEET

摘要

METHOD AND SYSTEM FOR EXTRUDING TUBULAR FOAMED POLYMER SHEET A process and system for the formation of a polymer foam sheet of comparatively uniform biaxially orientation and comparatively uniform dimensions prepared by extruding polymer foam so that it rides on a fluid bearing film between the point of extrusion and a point of diameter expansion of the extruding tube.